10- levels of measurement

Question 1

what is descriptive statistics

Answer 1

• summaries of data

- indication of what statistical analysis might reveal

Question 2

what are the 3 levels of measurement

Answer 2

• nominal (data consists of numbers and one person can only fall into one category e.g. m/f)
• ordinal (data is placed in rank order)
• interval (data has fixed intervals e.g. height)

Question 3

what are the 4 non-parametric tests

Answer 3

• chi squared
• spearman’s rho
• mann whitney
• wilcoxon

Question 4

what are the 3 parametric tests

Answer 4

• Pearson’s
• related t-test
• unrelated t-test

Question 5

why are parametric tests used over non-parametric tests

Answer 5

• more robust and powerful
• relay on actual data collected
• more likely to detect significance

Question 6

what are the 3 factors for a parametric test to be conducted

Answer 6

1. interval level of measurement
2. normal distribution
3. similar variance of scores

Question 7

what are the 3 tees of research design

Answer 7

• independent measures
• repeated measures
• matched participants

Question 8

how do you decide which test to use

Answer 8

1. does research involve correlation, test of difference or association
2. which research design is being used
3. which level of measurement is being used